@charset "utf-8";
@function r($p) {
    @return $p/640*100%;
}

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.web {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #133272;
    display: flex;
    align-items: center;
}

.content {
    width: 100%;
    max-height: 734px;
    position: relative;
    img {
        width: 100%;
    }
}

.index-logo {
    position: absolute;
    top: 9%;
    left: r(45);
    width: r(103);
    img {
        width: 100%;
    }
}

.title {
    position: absolute;
    top: r(91);
    left: 0;
    text-align: center;
    img:nth-child(1) {
        width: r(381);
    }
    img:nth-child(2) {
        width: r(576);
    }
    img:nth-child(3) {
        width: r(352);
        margin-top: -15px;
    }
    img:nth-child(4) {
        width: r(341);
    }
}

.bubble {
    position: absolute;
}

.bubble-move {
    -webkit-animation-duration: 3s;
    animation-duration: 3s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
    -webkit-animation-name: translateMove;
    animation-name: translateMove;
}

.bubble-left1 {
    width: r(94);
    top: r(380);
    left: r(49);
    img {
        width: 100%;
    }
}

.bubble-left2 {
    width: r(128);
    top: r(500);
    left: r(54);
    img {
        width: 100%;
    }
}

.bubble-right1 {
    width: r(148);
    top: r(380);
    left: r(447);
    img {
        width: 100%;
    }
}

.bubble-right2 {
    width: r(94);
    top: r(500);
    left: r(489);
    img {
        width: 100%;
    }
}

.start-button {
    position: absolute;
    width: r(131);
    bottom: r(50);
    left: r(235);
}
.start-button:hover{
    transform: scale(1.2);
}
.bounce {
    -webkit-animation-name: bounce;
    animation-name: bounce;
    -webkit-transform-origin: center bottom;
    transform-origin: center bottom;
}
.tada {
    -webkit-animation-duration: 1.5s;
    animation-duration: 1.5s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
  -webkit-animation-name: tada;
  animation-name: tada;
  -webkit-animation-iteration-count: infinite;
    animation-iteration-count: infinite;
}
@keyframes translateMove {
    0% {
        transform: scale(1);
    }
    30% {
        transform: scale(0);
    }
    100% {
        transform: scale(1);
    }
}

@-webkit-keyframes bounce {
    from,
    20%,
    53%,
    80%,
    to {
        -webkit-animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }
    40%,
    43% {
        -webkit-animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        -webkit-transform: translate3d(0, -30px, 0);
        transform: translate3d(0, -30px, 0);
    }
    70% {
        -webkit-animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        -webkit-transform: translate3d(0, -15px, 0);
        transform: translate3d(0, -15px, 0);
    }
    90% {
        -webkit-transform: translate3d(0, -4px, 0);
        transform: translate3d(0, -4px, 0);
    }
}

@keyframes bounce {
    from,
    20%,
    53%,
    80%,
    to {
        -webkit-animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
        -webkit-transform: translate3d(0, 0, 0);
        transform: translate3d(0, 0, 0);
    }
    40%,
    43% {
        -webkit-animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        -webkit-transform: translate3d(0, -30px, 0);
        transform: translate3d(0, -30px, 0);
    }
    70% {
        -webkit-animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        -webkit-transform: translate3d(0, -15px, 0);
        transform: translate3d(0, -15px, 0);
    }
    90% {
        -webkit-transform: translate3d(0, -4px, 0);
        transform: translate3d(0, -4px, 0);
    }
}
@keyframes tada {
  from {
    -webkit-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
  }

  10%,
  20% {
    -webkit-transform: scale3d(0.9, 0.9, 0.9) rotate3d(0, 0, 1, -3deg);
    transform: scale3d(0.9, 0.9, 0.9) rotate3d(0, 0, 1, -3deg);
  }

  30%,
  50%,
  70%,
  90% {
    -webkit-transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
    transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, 3deg);
  }

  40%,
  60%,
  80% {
    -webkit-transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
    transform: scale3d(1.1, 1.1, 1.1) rotate3d(0, 0, 1, -3deg);
  }

  to {
    -webkit-transform: scale3d(1, 1, 1);
    transform: scale3d(1, 1, 1);
  }
}